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common: host_memory: Implement for Android.

This commit is contained in:
bunnei 2022-12-17 23:29:15 -08:00
parent e6d5dbb58e
commit afdee9abea
1 changed files with 10 additions and 2 deletions
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12
src/common/host_memory.cpp
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@ -11,6 +11,10 @@
#elif defined(__linux__) || defined(__FreeBSD__) // ^^^ Windows ^^^ vvv Linux vvv #elif defined(__linux__) || defined(__FreeBSD__) // ^^^ Windows ^^^ vvv Linux vvv
#ifdef ANDROID
#include <android/sharedmem.h>
#endif
#ifndef _GNU_SOURCE #ifndef _GNU_SOURCE
#define _GNU_SOURCE #define _GNU_SOURCE
#endif #endif
@ -366,17 +370,20 @@ public:
} }
// Backing memory initialization // Backing memory initialization
#if defined(__FreeBSD__) && __FreeBSD__ < 13 #ifdef ANDROID
fd = ASharedMemory_create("HostMemory", backing_size);
#elif defined(__FreeBSD__) && __FreeBSD__ < 13
// XXX Drop after FreeBSD 12.* reaches EOL on 2024-06-30 // XXX Drop after FreeBSD 12.* reaches EOL on 2024-06-30
fd = shm_open(SHM_ANON, O_RDWR, 0600); fd = shm_open(SHM_ANON, O_RDWR, 0600);
#else #else
fd = memfd_create("HostMemory", 0); fd = memfd_create("HostMemory", 0);
#endif #endif
if (fd == -1) { if (fd < 0) {
LOG_CRITICAL(HW_Memory, "memfd_create failed: {}", strerror(errno)); LOG_CRITICAL(HW_Memory, "memfd_create failed: {}", strerror(errno));
throw std::bad_alloc{}; throw std::bad_alloc{};
} }
#ifndef ANDROID
// Defined to extend the file with zeros // Defined to extend the file with zeros
int ret = ftruncate(fd, backing_size); int ret = ftruncate(fd, backing_size);
if (ret != 0) { if (ret != 0) {
@ -384,6 +391,7 @@ public:
strerror(errno)); strerror(errno));
throw std::bad_alloc{}; throw std::bad_alloc{};
} }
#endif
backing_base = static_cast<u8*>( backing_base = static_cast<u8*>(
mmap(nullptr, backing_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0)); mmap(nullptr, backing_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0));